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Java program using Hash set

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import java.util.HashSet;

class Collections {
public static void main(String[] args) {
// creating HashSet Object
HashSet hSet = new HashSet();
// add() method is used to insert the elements ito the set
hSet.add(new Integer("1"));
hSet.add(new Integer("2"));
hSet.add(new Integer("3"));
System.out.println("HashSet contains.." + hSet);
}
}

Output:

D:\CandidJava\Util\HashSet>javac Collections.java

Note: Collections.java uses unchecked or unsafe operations.

Note: Recompile with -Xlint:unchecked for details.

D:\CandidJava\Util\HashSet>java Collections

HashSet contains..[1, 2, 3]

Filed in: Z-A All Java Codes

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